1994 CHEVROLET S-10
80,000 MILES
Avatar
CHRISWORKMAN
  • MEMBER
  • 5 POSTS
when i hit a bump and apply my breaks at the same time or just keep my foot on the petal slowing down
and hit a bump it makes a grinding kinda noise then i lose break pressure almost to the point of no breaks, i replaced the power booster thinking it was that but i was wrong do you guys have any idea what this matter could b
Jan 2, 2013 at 3:40 AM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
do you have abs???? it would give the impression of a vibration that could be mistaken as a grinding.. the low pedal concerns me. is the fluid level staying up ok????

have you had the linings and pads checked lately???

Roy
Jan 2, 2013 at 11:43 AM
Avatar
CHRISWORKMAN
  • MEMBER
  • 5 POSTS
Yes I have abs and the break fluid still in the same spot and the break pads where replaced about 6 months ago and thats sounds about right the grinding noise sounds like a loud vibrateing but it only happens when I hit a bump and the break pedal at the same time or if im slowing down and hit a bump. I can drive down the highway all day long and be fine as long as I don't hit any steep bumps or another street
Jan 2, 2013 at 5:48 PM
Advertisement
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
ok, i bet there is a sensor issue when you go over a bump, the gap changes and triggers the abs.

you may have to have someone look at the system and check for codes.

Roy
Jan 2, 2013 at 6:28 PM
Avatar
CHRISWORKMAN
  • MEMBER
  • 5 POSTS
Okay thank you. just wondering Wouldn't the check engine light come on for any sensor
Jan 2, 2013 at 6:45 PM
Avatar
ASEMASTER6371
  • CERTIFIED EXPERT
  • 52,796 POSTS
no, abs light
Jan 2, 2013 at 6:52 PM
Avatar
CHRISWORKMAN
  • MEMBER
  • 5 POSTS
I see thank you
Jan 2, 2013 at 6:54 PM
Avatar
CHRISWORKMAN
  • MEMBER
  • 5 POSTS
An abs scan tool it that the scan tool that you use inside the truck to check codes and can it be used to bleed the abs as well
Jan 3, 2013 at 11:01 PM